baber/WOPTO huggingface dataset:
Patent GB-380485-A (GB)
Title: Improvements in or relating to variable speed friction gearing
Inventor: HAYES FRANK A
IPC: F16H15/38
Filed: 1931-06-16
Abstract: 380,485. Variable speed gearing. HAYES, F. A., Middletown, New Jersey, U.S.A. June 16, 1931, No. 17497. Convention date, June 26, 1930. [Class 80 (ii).] In variable-speed gearing comprising toric discs such as 12, 13, Fig. 1, connected by epicyclic or other precessional friction rollers 20, control is effected by the angular displacement of a central member 14 having inclined or like toothed connection 16 with the roller carriers 18. In a non-epicyclic form shown in Fig. 2, the carriers 18 are movable bodily sliding on pivot trunnions 21 in fixed sockets 22 as described in Specification 254,341, [Class 80 (ii), Gearing, Variable-speed &c.]. The member 14 is formed as a part helical gear with which the teeth 16 engage. When the member 14 is turned by a projecting lever 23, the carrier 18 is slid bodily upwards. The rollers 20 are then inclined to their tracks on the discs and precession or spiralling begins so that the carrier 18 turns on its pivots 21. The teeth 16 slide through the teeth of the helical gear 14 and the inclination causes the carrier 18 to slide bodily downwards back to a position of equilibrium on a different gear ratio. In a form shown in Fig. 3, the carrier 18 instead of sliding bodily is adapted to turn in the plane of the paper by the provision of shoes 31. On displacement of the control member 14 clockwise, the carrier 18 turns anticlockwise so initiating precession which continues until the through motion of the inclined teeth 16 has turned the carrier 18 back to symmetrical position on a new ratio. In an epicyclic form shown in Fig. 4, the roller carriers are supported in a carrier frame secured to a rotary shaft 11. The control lever 23a is moved relatively to the frame to change gear by supplying pressure liquid to one side or the other of a piston in a cylinder 43 on the frame. Liquid pumped from a chamber 58 enters the valve shown by a pipe 57 and normally passes to exhaust pipe 60 by a through duct 63. On turning the control valve barrel 62, the duct 63 is closed, one of two delivery pipes 53, 54 is connected to the supply 57 while the other is connected to either of two exhaust pipes 59.
Patent GB-477333-A (GB)
Title: Improvements relating to driver's control devices for fluid pressure braking apparatus
IPC: B60T15/04
Filed: 1936-06-24
Abstract: 477,333. Fluid - pressure brakes. KERSHAW, A. G., and WESTINGHOUSE BRAKE & SIGNAL CO., Ltd. June 24, 1936, No. 17546. [Class 103 (i)] In a driver's control device for fluid-pressure brakes which is adapted to provide a first stage in which the control is electric and self-lapping and a further stage in which the control is pneumatic, means are provided in which at the beginning of the further stage the electric control mechanism is automatically set to the lap or neutral position so as not to interfere with the pneumatic control. An emergency position of the control handle may be provided in which both the electric and pneumatic controls are effective. The device shown is similar to that described in Specification 467,215, and comprises a floating lever 9 connected by link 7 to an arm 5 on the shaft 2 of the driver's handle, by a link 11 to an arm 13 of a contact lever and to a link 21 slidable in the rod of a piston which is subject to the brake cylinder pressure. The contact lever, pivoted at 15, has an arm 16 carrying a contact 17 adapted to engage fixed contacts 18 connected to application and holding valves. The shaft 2 also carries a rotary slide valve by which the brakes may be applied and released during the further range of movement of the handle independently of the electro-pneumatic control which is effected during the first range of movement. When the handle is in the full electro-pneumatic application position, the contact lever 16 would assume the application position to the left of that shown which is the holding position and in order to return it to this latter position during the pneumatic control range, a cam 51 is mounted on the shaft 2 and engages a roller 52 on an arm 53 provided on the contact lever. When however the handle reaches the emergency position the cam permits return of the contact lever to the application position so that the electropneumatic and pneumatic controls are simultaneously effective to apply the brakes.
Patent GB-476900-A (GB)
Title: Improvements in or relating to cartons and like containers
IPC: B65D5/42
Filed: 1936-06-24
Abstract: 476,900. Viewing contents of cartons &c. ROBINSON & SONS, Ltd., ROBINSON, E. B., and WHEATCROFT, W. June 24, 1936, Nos. 17582/36 and 5976/37. [Class 18] A carton or like container is formed from a blank shown in Fig. 1 with windows 2 and covered on the outside with a sheet 4 of flexible transparent material secured by adhesive thereto. Ordinary adhesives applied by rollers, spreaders or spraying devices may be used or adhesives which exert a solvent action on the transparent material, and the latter may consist of celluloid, gelatine (preferably insolubilized by tanning) cellulose derivatives such as acetate or regenerated cellulose. In Fig. 3 the lid 6 of a powder box 5 is similarly formed and is secured to the body by adhesive or adhesive tape. In Fig. 4 a drawer-and-shell box is shown comprising shell 11, drawer 12 and separately formed top 13 with windows 14 secured by adhesive and covered by flexible transparent material 15.
Patent GB-901398-A (GB)
Title: Improvements in or relating to melt-spinning synthetic polymer filaments
Inventor: FERRIER DUNCAN CAMERON
IPC: D01D4/00
Filed: 1960-05-19
Abstract: <PICT:0901398/IV(a)/1> Apparatus for melt-spinning a synthetic linear polymer comprises a filter pack 7 (see the Figure of the drawing which accompanied the Provisional Specification) fitted within port 3, said pack comprising a casing 9 containing within it layers of sand of graduated grain-size bounded at top and bottom by fine mesh metal screens.  The spinneret plate is located beneath the lower screen at the bottom 11 of the pack.  A so-called metal "bottle cap" 13 having a serrated top edge 15 surrounds the lower half of the pack to hold together the spinneret, lower screen and casing and is located centrally within its holder 17, which is screwed into the block 1 at the lower end of the port 3.  The pack is held tight against a gasket 19, surrounding the outlet of the pipe 5 supplying the molten polymer by a number of grub screws 21 in the lip 23 of the holder 17 bearing against a metal ring 25 and creating a continuous annular slot 27 between the ring 25 and the lip 23.  An inert gas such as superheated steam at 25 lbs. gauge pressure is supplied through pipe 29 and metering orifice 33 at the top of port 3.  A platen heater 35 surrounds the pack holder 17 and a wire mesh diffusing ring 37 is inserted inside the lip 23.  The gas passes from the orifice 33 downwardly between the casing 9 and the walls of the port 3, thence between the serrations 15 of the gasket 13, and between that gasket and the pack holder 17, and finally inwardly through the gap 27 and the diffusion ring 37 in a continuous annular stream.  A relatively shallow layer of gas is thus provided in contact with the entire exposed surface of the face of the spinneret plate.
Patent GB-1533286-A (GB)
Title: Diagnostic devices and preparation thereof
IPC: G01N21/45
Filed: 1976-04-30
Abstract: 1533286 Diagnostic device GENERAL ELECTRONIC CO 30 April 1976 [27 May 1975] 17661/76 Heading G1B A device for detecting the presence or absence of selected biological particles in a liquid sample consists of a substrate member 10 at least one face of which is a non-transparent surface of metal, a thin transparent layer of dielectric material 12 adhered to the surface, a transparent second layer of metal 13  adhered to the outer face of the first layer and a monomolecular layer of biological particles specifically reactive with the selected biological particles to be detected overlying at least a portion of the second metal layer. Substrate 10 may be of solid metal sheet or of metal applied to glass, another metal or plastics; the metal surface being of titanium, niobium, vanadium, bismuth, zirconium and tantalum. The dialectric layer 12 maybe of the oxide of the first metal or may be of magnesium flouride, or of polymeric or copolymeric material. The second metal layer 13 may be in the form of globules or islets for example indium, gold, silver, tin, lead. There are references to devices comprising a glass slide or polystyrene substrate, a first metal layers in the form of a mixed deposition of titanium and bismuth, a dielectric layer formed by anodizing to first metal layers and a second metal layer of indium particles. In Examples there are built up on devices of the invention successive layers of:- (i) carcinoembryonic antigen (C.E.A.), goat anti-C.E.A., rabbit anti-goat, goat anti-rabbit; (2), bovine serumalbumin (B.S.A.), rabbit anti- B.S.A., goat anti-rabbit, rabbit anti-goat.
Patent GB-292555-A (GB)
Title: Improvements in motor compressors for starting internal-combustion engines
IPC: F01L13/00
Filed: 1928-06-19
Abstract: 292,555. Garelli, A. June 22, 1927, [Convention date]. Starting.-In a starting device in which a small piston compressor driven by an auxiliary engine supplies compressed air, which mav be carburetted, to the cylinders of the engine to be started, the output of compressed air may be stopped by putting the cylinder of the compressor into communication with the crank case. As shown in Fig. 1, the compressor 1 has a piston-controlled inlet port 4 and a spring- controlled outlet valve 6. To stop the output, the cylinder is put in communication with the crank case 2 by means of a cock 7 and passage 9. The auxiliary engine may then be used to drive an electric generator &c. In a modification, the cock 7 is replaced by a forked rotary disc and the passage 9 opens into the rear end of the compressor cylinder in a position in which it is closed by the piston 3 before port 4 is opened. The engine and compressor cylinders may be arranged in V-form with a common crank casing 2, the compressor piston being slightly behind the engine piston. When the valve 7 is closed, the compressor piston assists in drawing in and compressing the engine charge in the crank case, causing super-compression; but when the valve 7 is open, adding the capacity of the compressor cylinder to that of the crank case, both the engine and the compressor run light.
Patent GB-582312-A (GB)
Title: Improvements in and relating to the prevention of the propagation of dust explosions
IPC: E21F5/14
Filed: 1944-09-19
Abstract: 582,312. Photo-electric prevention of dust explosions. FINCH, G. I. Sept. 19, 1944, No. 17872. [Class 40 (iii)] [Also in Group XXI] To prevent tho propagation of dust explosions, the ducts 2, 4 of a plant each have associated therewith an explosive charge 11 which breaks the duct and/or scatters inert dust 10 such as calcium fluoride or vapour. The operation of the charge 11 is controlled by a photo-electric cell in a side chamber 6 or by heat-sensitive means in the path of the explosion-flame. A blast-proof wall may be provided adjacent the charge-carrying portion of the duct.
Patent GB-178872-A (GB)
Abstract: 178,872. Taggart, J. Scott-, and Radio Communication Co., Ltd. Oct. 29, 1920. Thermionic modulating systems.-In a modulating system, chiefly applicable to wireless telephony, high-frequency oscillations from a separate service A are applied to the grid circuit of an amplifier V2, Fig. 1, this circuit being also coupled through the coils L1, L3 and L4, L5 with a variable conductor, preferably a diode or triode valve V1. The coils are so arranged that the high-frequency currents transferred through the coils L4, L5 are superposed on the grid circuit in opposition to those induced directly from the source A. When the conductivity of the valve V, is varied by means of a microphone M, modulated current appears in the plate circuit of the amplifier V2 and is fed to the aerial. In the arrangement shown in Fig. 2, a diode valve V1 is used as a variable conductor shunted across the coil L1, and a resistance R, which may be 100,000 ohms. Normally the plate of the diode has a sufficient negative potential, derived from a battery B, to prevent any passage of current through it. The effect of speech into the microphone M is to lessen the plate potential, so that high-frequency impulses can pass. These give rise to potential variations across the resistance R which oppose the grid effects due to the source A. In a modified arrangement, the diode V, is shunted directly across the grid-filament path of the amplifier. According to the Provisional Specification, the high-frequency source A ia coupled to the grid of the auxiliary valve V1, Fig. 1, instead of to the plate circuit, and the microphone may be applied either to the grid or plate circuit of that valve; Specification 172,389 is referred to.
Patent GB-163929-A (GB)
Title: Improvements in cards for playing games
IPC: A63F1/02
Filed: 1920-06-30
Abstract: 163,929. Mundell, R. June 30, 1920. Word - building and like cards.-To provide a game which at the same time will teach spelling, addition, sub. traction, and multiplication, a deck of 144 cards, divided into 5 sets, is employed. Four of the sets contain 26 cards and the remaining sets 40 cards. Each card is lettered alphabetically and numbered consecutively. On the same face as the letter, Fig. 1, the picture of an animal, e.g., a horse appears, the initial letter of the name of the animal corresponding to the letter on the card. The reverse face of the card, Fig. 2, is numbered consecutively in groups of 1 to 12 and is provided with a portion of one of the multiplication tables, top tables running consecutively from table 1 to table 12, throughout the entire deck. Fig. 6 shows the arrangement of the cards for teaching addition and subtraction, the set chosen being the cards with the 2-times table thereon. A card having a 2 on its lower half isslipped beneath each of the cards separately. It is intended that the even numbers be printed in a colour different from the odd numbers, and, when placed as shown, the sum of the extra card and the one that the extra card is beneath is found by glancing at the differently coloured card to the left. The lettered sides of the cards can also be placed upwardly and the cards grouped to spell different words. To teach subtraction, the arrangement shown in Fig. 5<a> may be employed. To subtract any one of the large numbers in the lower row from the numbers in the upper row, as many spaces are counted towards the left of the upper number, beginning with the first to the left of the upper number, as is equal to the number represented on the lower card which is subtracted.
Patent GB-298259-A (GB)
Title: Improvements in pistons for use on fluid pressure engines
IPC: F16J9/20
Filed: 1927-07-06
Abstract: 298,259. Doyle, D. July 6, 1927. Pistons; packing. - A piston has two or more packing-rings b, c of parallelogrammic crosssection in oppositely inclined grooves of the same crosssection. Similar rings d may be arranged at the lower end of the skirt. The packing may be used in combination with ordinary split rings f.
Patent GB-263414-A (GB)
Title: Improvements relating to light reflectors
IPC: G02B5/126
Filed: 1926-07-17
Abstract: 263,414. Macnab, J., and Osbaldiston, E. July 17, 1926. Reflectors.- Reflecting devices for use as rear reflectors for cycles &c. are constructed of a solid glass element a having a convex front refracting surface b and a concave rear reflecting surfa.ce c, both surfaces having a common centre of curvature, the rear surface c being situated at or near the focus of the front surface b. This construction enables incident light received over a large range of angles of incidence to be returned towards its source. The glass element a is preferably of frusto-conical form having the rear surface of larger diameter than the front surface, and provided with a reflecting surface d in direct contrast with the rear surface of the glass element. These reflectors may also be used in road signs and advertising devices.
Patent GB-586882-A (GB)
Title: Bipolar electrolysers for the production of hydrogen and oxygen
IPC: C25B9/17
Filed: 1944-09-20
Abstract: 586,882. Electrolytic cells for the production of hydrogen and oxygen. MASCHINENFABRIK OERLIKON. Sept. 20, 1944, No. 17982. Convention date, Oct. 27, 1943. Addition to 543,671. [Class 41] In a bipolar electrolyzer, hydrogen is led from each cathode compartment by a separate pipe 6 to a gas separator 8 from which condensed liquid leaves by a pipe 9 communicating with a reservoir 10 open to the atmosphere, oxygen from each anode compartments being similarly led to a separator 8<1> the liquid exit from which also communicates with the reservoir 10; liquid is returned to the cells by a pump 17. By arranging the liquid exits from the separators above the bottom of the gas discharge tubes 19, 19<1> a safety seal is maintained when variations of pressure occur in the cells. Insulating members 7 are arranged in the gas withdrawal pipes and the liquid feed pipes.
Patent GB-120900-A (GB)
Title: Improvements in or relating to Turbines and Screw Pumps.
Inventor: MOMBERGE LEON FRANCOIS
IPC: F04D3/02
Filed: 1918-11-04
Abstract: 120,900. MombergÚ, L. F. Nov. 13, 1917, [Convention date]. Screw motors; working-fluid supply.-An internal-combustion turbine, applicable also for use with steam, air, water, &c., and as a pump, comprises a drum 1 provided with a series of helical channels 4 extending over at least half a convolution and formed by partitions 5 of concave section. Gases are admitted by ducts 12 to explosion chambers 13 and after ignition are discharged through stator nozzles 9 into the helical channels 4, the admission and discharge of the gases being controlled by ports in rotary valve disks 15, 16 geared to the drum shaft 2. The channels 4 may increase in cross-sectional area towards the outlet, and the drum may be of conical form.
Patent GB-165793-A (GB)
Title: Improvements in or relating to systems of long distance telephony
IPC: H04R23/00
Filed: 1921-07-04
Abstract: 165,793. Naamlooze Vennootschap de Nederlandsche Thermo - Telephoon Maatschappij. July 5, 1920, [Convention date]. Telephone systems.-In a system of long-distance telephony, a thermophone is combined with an amplifier to form a receiver sensitive also to the higher frequencies, thus compensating for the unequal damping produced in the line. The thermophone a is connected through the amplifier c and a transformer d to the line wires f. To prevent interference between the transmitting microphone k and the adjacent receiver, the primary of the transformer d is divided into two parts e, e<1>, to a point between which the microphone transformer g is connected, a compensating artificial conductor consisting of resistances w and condensers o being connected as shown. By suitable adjustments of the intervalve transformers in the amplifier c, a constant amplifying ratio may be obtained over a definite range of frequencies. The resistance and impedance of the transformer d may be made negligible compared with those of the mircophone transformer, thus supplying the whole of the current energy to the line. The same local battery may be used for microphone, thermophone, and amplifier, or central battery arrangements may be employed. Microphones having direct-current power of from 5 to 10 watts may be used, for example, the Egner-Holmstr÷m microphone.
Patent GB-298270-A (GB)
Title: Improvements in and relating to cementitious material
IPC: C04B9/04
Filed: 1927-07-07
Abstract: 298,270. Harrap, E. R., Cann, J. A., and Bell's United Asbestos Co., Ltd. July 7, 1927. Plastic compositions containing magnesium oxide and ferrous sulphate.-Ferrous sulphate is used for the whole or part of the sulphate in oxysulphate cements. The oxide constituent may be magnesium oxide, and retarders such as boric acid or accelerators such as alum may be added. The mixture can be kept dry, ready for gauging with water.
Patent GB-438014-A (GB)
Title: Radio receiver or the like with manual volume control
IPC: H03G9/00
Filed: 1935-06-25
Abstract: 438,014. Reproducing music &c. COLE, Ltd., E. K., Priory Crescent, Southend-on-Sea. -(Aga Baltic Radio Aktiebolaget; Lidingo, Stockholm) June 25, 1935, No. 18120. [Class 40 (iv)] A radio receiver or the like comprises two or more loudspeakers designed for different ranges of volume and arranged to be used alternatively in association with volume-controlling means. In the system shown, loudspeakers 2, 3 designed for small and large volumes respectively are alternatively connected up over a switch arm 7 which may be coupled to the volume-controlling device 9. In the mid-position of arm 7 both loudspeakers are operative and in this position a filter 11, 12 may be associated with loudspeaker 2 to cause it to accentuate the higher frequencies. The insertion of the filter 11, 12 and the connection of a shunt condenser 10 to cause loudspeaker 2 to accentuate the lower frequencies when used alone may be effected by a third switch arm 13 coupled to arms 7, 9.
Patent GB-758884-A (GB)
Title: Improved means for the alternatively resilient or rigid supporting of reciprocating engines or other machine parts or appliances
IPC: F16F15/023
Filed: 1954-06-21
Abstract: 758,884. Machine supports. GENEST, GES, FUR ISOLIERUNGEN, W. June 21, 1954 [June 20, 1953], No. 18155/54. Class 80(4) A resilient support, e.g. springs 2, for a machine 1, or part of a machine or apparatus, on a foundation 3, or other machine or apparatus part, is adapted to be put out of action to make the support rigid when required by means of hydraulic or pneumatic pressure devices 4 acting between projections 6 on the machine and the foundation 3 to hold the projections 6 rigidly against angles 7 secured to the foundation.
Patent GB-129719-A (GB)
Title: Improvements in Apparatus for Indicating Deviations in the Direction of Travel of Aircraft.
IPC: B64D45/00
Filed: 1917-12-07
Abstract: 129,719. Blackburn Aeroplane & Motor Co., and Booth, H. Dec. 7, 1917. Anemometers and a.ir-current indicators.-Apparatus for indicating when an aircraft deviates from a straight course comprises a transverse tube 1 provided at its ends with static pressure nozzles or Venturi tubes and fitted or communicating with a flow meter or indicator, which may consist of a helical strip 5 carried by a helical coil 6 inside a transparent tube 4.
Patent GB-907686-A (GB)
Title: Improvements in or relating to crane or like load-carrying hooks
IPC: B66C1/36
Filed: 1961-05-18
Abstract: 907,686. Hooks. STALLINEFABRIKEN D. AHLQUIST A.B. May 18, 1961 [May 20, 1960], No. 18173/61. Class 89 (2). In a crane or like load-carrying hook including a closing member 3 and releasable holding means, the closing member 3 being pivotally mounted at 4 on the free end 2 of the hook and having the holding means connected to it, the closing member 3 can occupy a position to close the hook or a position in which the hook is open, and is releasable held in either position by the holding means engaging with a part of the hook. In the form shown the holding means is a latch 8, pivotally mounted on the member 3, and can engage a projection 14 on the free end of the hook, so that the member 3 is held either in the closed or in the open position. The member 3 is made of two parallel strips 5 (with flanged portions 6) rigidly connected, and the latch 8 is between them and turnably mounted on the pin 9. The latch is actuated by a spring 12 and has a shoulder 13 for engaging a projection 14 on the free end 2 of the hook, the member 3 being then held in the closed position. The latch 8 has an accessible finger-grip whereby it can be moved to release the member 3 when closed by pressure in the direction of an arrow P. An alternative form of the latch 8 may be used.